cari istilah yang lo mau, kaya' the eiffel tower:
 
1.
To hit someone or something with your penis.
"What sound does a tankslap make? DONG!"

"Man, if she does that to me one more time, I'm gonna tankslap that whore."
dari Stovaa Jum'at, 07 Desember 2007
 
2.
The fine art of slapping one's "semi" off one's stomach to impress one's annoyed girlfriend. Also works with gay boys, apparently
I tankslapped and she was not impressed. Pah.
dari The real Jeffers Jum'at, 04 Agustus 2006